/*
 * Tencent is pleased to support the open source community by making TKEStack
 * available.
 *
 * Copyright (C) 2012-2019 Tencent. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the
 * License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 */

package util

import (
	"encoding/json"
	"net/http"
)

type ErrorCode string

const (
	ErrorNone                  ErrorCode = ""
	ErrorInternalError         ErrorCode = "InternalError"
	ErrorInvalidParameter      ErrorCode = "InvalidParameter"
)

type ResponseError struct {
	Code ErrorCode `json:"Code,omitempty"`
	Message string `json:"Message,omitempty"`
}

func WriteResponseError(rw http.ResponseWriter, code ErrorCode, message string) {
	e := ResponseError{
		Code: code,
		Message: message,
	}
	res, err := json.Marshal(e)
	if err != nil {
		rw.Write([]byte("internal error"))
		return
	}
	_, _ = rw.Write(res)
}
